REPORT OF STATE GEOLOGIST. 190 



ited, on the walls and roof. They were never noted on the wing, except when 

 disturbed, when they would fly but a short distance before alighting. The large 

 species were about as long as, but more slender than, the common house fly. The 

 larvse, according to Osten Sacken, live in fungi and the excrement of bats. 

 — W. S. B. 



11. LlMOSINA TENEBRARUM D, Sp. 



General color throughout, dark brown, sub-shining. Front, face, 

 edge of clypeus and proboscis the same, the last at the tip yellowish ; 

 third joint of antenna rounded, arista slender, microscopically pubescent. 

 Dorsum of thorax with moderate bristles ; scutellum concolorous, with 

 four bristles ; pleurse with a little yellow along the sutures ; halteres yel- 

 low. Legs of simple structure ; the tibite a trifle lighter than the femora, 

 their tips and the tarsi yellow ; hind metatarsus but little thickened, two- 

 thirds of the length of the following joint. ^^ — -.^^ 



Wings as figured. The last section of the / ^ 



third vein perfectly straight, the fourth be- ^-Ik::^^^— --— c;!^!''^ \ 



yond the posterior crossvein becoming ex- ^ ' — y 



tremely thin, yet traceable to the margin ; ^ ~^^* 



second and third sections of costal vein sub- Wingof Atmo«ma<e«e6rarw7n n.sp. 

 equal. The wings are moderately tinged with brown. 



Length 2 to 2.1 mm. ; of wing, 1 to 1.3 mm. 



Ten specimens, both sexes ; Truett's Cave, July 9 (2) ; Donnehue's 

 Cave, July 14 (2) ; Clifty Cave (1) ; Marengo Cave (V) \ Wyandotte 

 Cave (3) ; same, near Augur Hole (1) ; same, November 6, 1896 (1). 



The venation will readily distinguish the species. 



The specimens from Donnehue's and Clifty caves Avere taken from piles of half 

 dry excrement of the raccoon. Those from Wyandotte from beneath stones in 

 the vicinity of remains of dead bats near the "Scuttle." The insects leap a few 

 inches, rather than fly, when disturbed. — W. S. B. 



12. Phora nigriceps Loew. 



Loew, Centuries, VI, 99. 

 Nine specimens, Wyandotte Cave, near Augur Hole. 

 Taken from the mouldy remains of bread, chickens, etc., near the "Augur 

 Hole," three-fourths of a mile from the mouth, July 27, 1896.— W. 8. B. 



